CN203821252U - Railway frame-shaped bridge - Google Patents
Railway frame-shaped bridge Download PDFInfo
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- CN203821252U CN203821252U CN201420002816.3U CN201420002816U CN203821252U CN 203821252 U CN203821252 U CN 203821252U CN 201420002816 U CN201420002816 U CN 201420002816U CN 203821252 U CN203821252 U CN 203821252U
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- carbon fiber
- top board
- frame structure
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- soffit
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 89
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000004917 carbon fiber Substances 0.000 claims abstract description 89
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 229920005989 resin Polymers 0.000 claims description 59
- 239000011347 resin Substances 0.000 claims description 59
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000005304 joining Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 15
- 239000004567 concrete Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Bridges Or Land Bridges (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses a railway frame-shaped bridge. The railway frame-shaped bridge comprises a bottom plate, a top plate, multiple load-bearing walls arranged between the top plate and the bottom plate, multiple carbon fiber fabric tapes stuck at cracks of the lower surface of the mid-span region of the top plate, steel plates stuck on the lower surfaces of the support base regions on the two sides of the mid-span region, steel plates stuck on the wall surfaces of the load-bearing walls which are connected to the support base regions, and at least a steel support arranged between every two connected steel plates, wherein the carbon fiber fabric tapes are perpendicular to the cracks, and the length of the carbon fiber fabric tapes is at least 10 times the width of the cracks. According to the technical scheme of the railway frame-shaped bridge, the railway frame-shaped bridge can be reinforced without removing railroad beds above the top plates, and the headroom under the mid-span region cannot be affected.
Description
Technical field
The utility model relates to bridge strengthening field, relates in particular to a kind of railway frame structure bridge.
Background technology
Along with continuing to increase of the railway mileage of China, railway frame structure bridge is widely used in the transposition section that is through at railway under highway.
A kind of cross-sectional schematic of structure downline road direction of railway frame structure bridge as shown in Figure 1, comprising: be embedded in underground base plate, the top board parallel with base plate and be arranged at top board and base plate between for multiple load bearing walls of roof supporting.Conventionally the top board between two adjacent load bearing walls is divided into the span centre district mediating, and is positioned at the bearing district of both sides, span centre district; Bearing district and load bearing wall join.
Railway frame structure bridge multidigit is in the urban area of heavy traffic, build and have railway bed at the upper surface of top board, above base plate, under top board, between load bearing wall, walked other road, the roadbed of the road that a part for load bearing wall is walked covers.
Along with the raising of expanding economy and people's living standard, total volume of railway freight increases day by day, and rate of traffic flow and the carrying capacity of train are increasing, and the speed of train is more and more faster.A lot of railway frame structure bridges by full capacity or overburden use, cause increasing railway frame structure bridge to occur the problems such as structure is aging, damaged, supporting capacity reduction.Therefore be necessary that the railway frame structure bridge to going wrong reinforces.
But inventor of the present utility model finds also there is no the reinforcement means for railway frame structure bridge specially at present.And be conventionally applied to the reinforcement means of the bridges such as beam bridge, arch bridge and suspension bridge, and often need to bridge be reinforced from bridge floor, bridge floor is opened in for example pick, sets up reinforcement measure rear enclosed bridge floor at the pick place of opening.If directly adopt these reinforcement means to reinforce railway frame structure bridge, need to remove in advance the railway bed on bridge floor, cause stopping transport by the railway of this railway frame structure bridge, have a strong impact on traffic.
Inventor of the present utility model also finds, to reinforce beam bridge as example, can also reinforce beam bridge by the thickness of the soffit increase girder of the girder from beam bridge; Or set up the bracing means such as steel plate, anchor pole at the soffit place of girder and reinforce beam bridge.But these methods are applied to railway frame structure bridge, can make the soffit of the top board of railway frame structure bridge increase thickness, or the soffit of top board is set up bracing means; Reduced the span centre district of top board and walked the headway between the road surface of road, the actual limit for height of road to vehicle walked in impact possibly.In addition, thickening top board or setting up bracing means has increased load and moment of flexure that top board bears, has offset the consolidation effect of a part to top board.
In sum, if use existing reinforcement means to reinforce railway frame structure bridge, there are the traffic problems that affect the road of walking under railway on bridge or bridge.
Utility model content
The defect existing for above-mentioned prior art, the utility model provides a kind of railway frame structure bridge, neither can affect railway on bridge, also can not affect the traffic of the road of walking under bridge.
According to technical solutions of the utility model aspect, a kind of railway frame structure bridge is provided, comprising: base plate, top board and be arranged at the multiple load bearing walls between described top board and base plate; Also comprise:
Be pasted on the crack place of the soffit in the span centre district of described top board carbon fiber strap, be pasted on the soffit in the bearing district of both sides, described span centre district steel plate, be pasted on the steel plate of the metope of the load bearing wall joining with described bearing district, and at least one steel being arranged between two steel plates that join supports;
Wherein, described carbon fiber strap is many, and with described crack move towards perpendicular, its length is at least 10 times of width in described crack.
Preferably, the side edge of the top board between the two ends of described carbon fiber strap and described load bearing wall.
Preferably, described crack is many, and moves towards inconsistent, and described carbon fiber strap is multilayer;
Wherein, every layer of carbon fiber strap respectively corresponding one group move towards consistent crack, and one deck carbon fiber strap corresponding with one group of crack be perpendicular to this group crack move towards to paste.
Preferably, between described carbon fiber strap, be spaced apart 200mm.
Preferably, railway frame structure bridge as claimed in claim 4, is characterized in that, the width of described carbon fiber strap and thickness are respectively 300mm and 0.167mm.
Preferably, described carbon fiber strap is made up of many carbon fiber cloths; Two adjacent carbon fiber cloths overlap mutually.
Further, described railway frame structure bridge, also comprises: between the soffit in the span centre district of described top board and described carbon fiber strap, be coated with successively bottom coating resin, levelling resin and binding resin.
Further, described railway frame structure bridge, also comprises: between the carbon fiber strap of front stickup and the carbon fiber strap in rear stickup, be coated with described binding resin.
Preferably, described steel support is welding or is anchored on steel plate.
Preferably, described at least one steel supports and is specially the support of more than two steel; Interval between steel supports is equally spaced; And
Described steel supports and is strip, and its cross section is circular; The two ends that described steel supports are tabular.
In the technical solution of the utility model, after the soffit sticking carbon fiber strap of the top board of railway frame structure bridge, the metope affixing steel plate of the load bearing wall joining at the bearing district of top board soffit, with bearing district, and between the steel plate of this bearing district soffit and the steel plate of this load bearing wall metope, be connected steel support, realize the reinforcing to railway frame structure bridge, and without the railway bed removing on top board, do not affect the operation of this railway.
Further, at a soffit sticking carbon fiber strap in the span centre district of top board, and the carbon cloth tape thickness of pasting is less, does not affect the soffit in span centre district and walks the headway between road foundation.
Brief description of the drawings
Fig. 1 is the structural representation of existing railway frame structure bridge;
Fig. 2 is the schematic diagram of the reinforcement means flow process of the railway frame structure bridge of the utility model embodiment;
Fig. 3 a is the schematic diagram of the method flow reinforced of the span centre district to top board in railway frame structure bridge of the utility model embodiment;
Fig. 3 b is the schematic diagram in the crack of the soffit of top board in the railway frame structure bridge of the utility model embodiment;
Fig. 3 c, 3d are respectively the schematic diagram of the carbon fiber strap of two groups of cracks stickups of covering of the utility model embodiment;
Fig. 3 e is the structural representation of the railway frame structure bridge after the span centre district of the utility model embodiment reinforces;
Fig. 3 f, 3g, 3h, 3i are respectively the schematic diagram of the parameter of bottom coating resin, levelling resin, binding resin and the carbon cloth of the utility model embodiment;
Fig. 4 a is the schematic diagram of the method flow of the soffit affixing steel plate in the bearing district at top board of the utility model embodiment;
Fig. 4 b is the structural representation of the railway frame structure bridge after the bearing district of the utility model embodiment reinforces;
Fig. 4 c is the schematic diagram of the method flow of the metope affixing steel plate at load bearing wall of the utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the utility model is further described.But, it should be noted that, many details of listing in manual are only used to make reader to have a thorough understanding to one or more aspects of the present utility model, even if do not have these specific details also can realize these aspects of the present utility model.
Inventor of the present utility model finds, the problems such as the easy appearance in the span centre district of the top board of railway frame structure bridge and bearing district is aging, damage.Inventor of the present utility model analyzes as follows to the reason going wrong: railway frame structure bridge is conventionally built and formed by steel concrete, and concrete tensile property is poor.The span centre district of top board has the trend of sinking under the effect of deadweight and load, produces tensile stress, thereby cause the soffit in span centre district easily to occur crack at the soffit in span centre district, may cause span centre district to rupture at crack place.In the time that crack appears in the soffit in span centre district, the part that bearing district is supported by load bearing wall has the trend upwarping, and produces tensile stress at the upper surface of this part, causes the upper surface in bearing district easily to occur crack; The liquid such as water infiltrate by these cracks, easily cause the reinforcing bar generation corrosion in bearing district, cause bearing district tensile property to decline; May cause bearing district to rupture from crack, come off.
Based on above-mentioned analysis, inventor of the present utility model considers, can be at the soffit in span centre district direction (perpendicular to the trend in crack) the sticking carbon fiber strap along tensile stress; Utilize carbon fiber strap far above steel plate, concrete tensile property, can prevent crack continuation expansion or occur new crack; For the part directly not supported by load bearing wall in bearing district, can, at fixed support structure between itself and load bearing wall, make the load that braced structures is born it pass to load bearing wall; Thereby do not needing to remove on the basis of railway bed on top board, realizing the reinforcing to railway frame structure bridge.And the thickness of carbon fiber strap can be ignored with respect to the headway of below, span centre district, the road that therefore can not walk below, span centre district exerts an influence.
Below in conjunction with the technical scheme of brief description of the drawings the utility model embodiment.
The attendant of railway frame structure bridge passes through detecting instrument, or by visually observing, detects behind the crack of soffit appearance in the span centre district of top board, can implement reinforcement measure to railway frame structure bridge, and concrete grammar flow process, as shown in Figure 2, comprises the steps:
S201: the span centre district of the top board to railway frame structure bridge reinforces.
Particularly, for the crack detecting at the soffit in span centre district, the soffit of the top board between the load bearing wall of the railway frame structure bridge of its both sides, cover this crack and paste many parallel carbon fiber straps, and make the carbon fiber strap pasted and this crack move towards perpendicular, its length is at least 10 times of width in this crack.The concrete grammar of sticking carbon fiber strap will be in follow-up detailed introduction.
S202: side supports district of span centre district is reinforced.
Particularly, for the Mei Ce bearing district in span centre district, at the soffit affixing steel plate in this bearing district, and after the metope affixing steel plate of the load bearing wall of the railway frame structure bridge joining with this bearing district, at least one steel is set to be supported, the steel plate of this bearing district soffit is fixed in one end that steel is supported, and the other end is fixed on the steel plate on the metope of the load bearing wall joining with this bearing district.The concrete grammar that bearing district is reinforced will be in follow-up detailed introduction.
In actual applications, the crack detecting at the soffit in the span centre district of top board may be wall scroll crack, may be also many cracks, and many cracks move towards may be consistent, also may be inconsistent.Many of the span centre district soffits for the top board of railway frame structure bridge move towards inconsistent crack, the concrete grammar that the span centre district to top board that the utility model embodiment provides reinforces, and flow process as shown in Figure 3 a, comprises the following steps:
S301: the soffit of the top board between the load bearing wall of fracture both sides carries out smooth.
Particularly, for every crack of the span centre district soffit of top board, for the top board between the load bearing wall of these both sides, crack, pick cutter, remove this top board soffit incompleteness, damaged part; If this top board soffit exists the reinforcing bar exposing, check whether corrosion of reinforcing bar, and the reinforcing bar that produces corrosion is eliminated rust; Pick cutter, remove for process, and the position of exposed steel bar, use higher than the epoxy mortar of the former concrete strength of top board and fill, to repair, to restore the soffit of top board; The projection (for example, the linking part between reinforced concrete member, section poor convex surface etc.) of polishing top board soffit; The external corner of top board soffit is polished into fillet, adopts cement mortar to carry out chamfering for inner corner trim, chamfer radius is not less than 30mm.
Preferably, to the soffit of top board carry out smooth after, can also clean the soffit of top board; After the soffit of top board is dried, execution step S302.
S302: the soffit after top board smooth is smeared bottom coating resin.
Particularly, for the top board between the load bearing wall of both sides, crack, the soffit after it is smooth is smeared bottom coating resin equably.Preferably, can smear bottom coating resin with rotary broom.After bottom coating resin solidifies, if condense and have projection at the soffit of top board, projection is removed in polishing; If expose the soffit of top board after polishing, supplement and smear bottom coating resin at the soffit of the top board exposing.
Bottom coating resin specifically can comprise epoxy resin; Performance project, performance indications and the test method standard of bottom coating resin are as shown in the form in Fig. 3 f.
S303: the soffit that is coated with bottom coating resin at top board is smeared levelling resin, makes the soffit of top board smooth-going.
Particularly, at temperature more than 5 DEG C, relative humidity is less than under 85% weather condition, for the top board between the load bearing wall of both sides, crack, its be coated with bottom coating resin soffit depression position (for example, honeycomb dress hole, pitted skin, isolated aperture etc.), the poor concave surface of inner corner trim, section and the outer peripheral areas of arch camber, smear levelling resin to fill and lead up, make the soffit of top board smooth-going.
Preferably, after smearing levelling resin, if the soffit of top board still exists concavo-convex lines, concavo-convex lines is polished flat.Wherein, levelling resin specifically can comprise epoxy resin; Performance project, performance indications and the test method standard of levelling resin are as shown in the form in Fig. 3 g.
S304: the soffit that is coated with levelling resin at top board is smeared binding resin.
Particularly, for the top board between the load bearing wall of both sides, crack, the soffit that is coated with levelling resin at it, smears binding resin equably.
Preferably, arch camber in the soffit of top board, through repairing etc. position, increase the applying amount of unit area of binding resin, make it be greater than the applying amount in the unit area of smooth-going place binding resin.Can smear resin with rotary broom.Wherein, binding resin specifically can comprise epoxy resin; Performance project, performance indications and the test method standard of binding resin are as shown in the form in Fig. 3 h.
S305: at the soffit that is coated with binding resin of top board, cover one group of crack and paste many parallel carbon fiber straps.
Particularly, at temperature more than 5 DEG C, relative humidity is less than under 85% weather condition, moves towards inconsistent crack for many of the span centre district soffits of top board, as shown in Figure 3 b, using moving towards consistent crack as one group of crack, marks off at least one group of crack.For one group of crack as shown in Figure 3 b, for the top board between the load bearing wall of these both sides, group crack, be coated with the soffit of binding resin at this top board, as shown in Figure 3 c, cover this group crack and paste multiple parallel carbon fiber straps.Multiple parallel carbon fiber straps and this group crack move towards perpendicular.
Preferably, the two ends of each carbon fiber strap can and the load bearing wall of these both sides, group crack between the side edge of top board.The width of carbon fiber strap can be 300mm; Can interval 200mm between carbon fiber strap.
Preferably, can adopt cylinder to each carbon fiber strap of having pasted, along the direction roll extrusion of its extension repeatedly.Binding resin is fully infiltrated in carbon fiber strap, and remove the hollowing that air residual between carbon fiber strap and binding resin forms.For the position of arching upward, can adopt cylinder to start to this position edge roll extrusion from this position central point.
Further, carbon fiber strap is what from carbon cloth, cut out in advance.Preferably, when cutting carbon fiber strap, can paste wide adhesive tape in the position for the treatment of cutting in advance, cutting is carried out in the position in the middle of wide adhesive tape, to make after cutting the section of carbon fiber strap neat, avoids occurring carbon fiber running phenomenon.As shown in the form in Fig. 3 i, carbon cloth can be that thickness is that 0.167mm(is that mass area ratio is 300g/m
2), intensity rank is the carbon cloth of high strength II level.
Preferably, multiple carbon fiber cloths can be pasted and formed a carbon fiber strap; Wherein, two adjacent carbon fiber cloths overlap mutually.For each carbon fiber cloth, its width equals to set width (for example 300mm), and length is greater than to be set width and is not more than length threshold (for example 6000mm).For two adjacent regions that carbon fiber cloth overlaps mutually, its length is not less than 100mm and is not more than 1/5 of length threshold.
S306: many carbon fiber straps of having pasted are smeared after binding resin, covered another group crack and paste many parallel carbon fiber straps.
Particularly, at temperature more than 5 DEG C, relative humidity is less than under 85% weather condition, for another group crack as shown in Figure 3 b, for the top board between the load bearing wall of these both sides, group crack, the soffit of multiple carbon fiber straps of having pasted at this top board, smears binding resin equably.Afterwards, use cylinder to each carbon fiber strap of having pasted, along the direction roll extrusion of its extension repeatedly, binding resin is fully infiltrated in carbon fiber strap.
At the soffit of many carbon fiber straps of having pasted, as shown in Figure 3 d, cover this group crack and paste multiple parallel carbon fiber straps, concrete grammar is identical with the method for pasting multiple parallel carbon fiber straps in step S305, repeats no more herein.
In practice of construction, all right repeating step S306, for the crack sticking carbon fiber strap of other trend.
In fact the carbon fiber strap of, having pasted need to just can reach through after a while design strength.Under different temperature, the carbon fiber strap of having pasted reaches design strength required time difference.For example, temperature on average below 10 DEG C time, needs 2 weeks; Temperature on average more than 10 DEG C and below 20 DEG C time, needs 1～2 week; Temperature on average during higher than 20 DEG C, needs 1 week.Preferably, before the carbon fiber strap of having pasted reaches design strength, can outsourcing plastic sheeting etc. mode, prevent the invasion to carbon fiber strap such as dust storm, rainwater.
In fact, the railway frame structure bridge after the span centre district of top board is reinforced, the schematic diagram of its structure as shown in Figure 3 e, can comprise: base plate, top board and be arranged at top board and base plate between multiple load bearing walls; Also comprise: the carbon fiber strap that is pasted on the crack place of the soffit in the span centre district of top board.Wherein, carbon fiber strap is many, and with crack move towards perpendicular, its length is at least 10 times of width in crack.
Preferably, the side edge of the top board between the two ends of carbon fiber strap and the load bearing wall of both sides, crack.
Preferably, between the soffit in the span centre district of top board and carbon fiber strap, be coated with successively bottom coating resin, levelling resin and binding resin.
Preferably, the crack detecting can be many, and moves towards inconsistent; The carbon fiber strap that is pasted on top board soffit can be multilayer; Every layer of carbon fiber strap respectively corresponding one group move towards consistent crack, and one deck carbon fiber strap corresponding with one group of crack be perpendicular to this group crack move towards to paste.
Preferably, between the carbon fiber strap of front stickup and the carbon fiber strap in rear stickup, be coated with described binding resin.
In practice of construction, can paste 2～5 layers of carbon fiber strap, its gross thickness is some millimeters; Compared with the headway of some meters of the span centre district belows of top board, the gross thickness of carbon fiber strap can be ignored.Therefore, at the soffit sticking carbon fiber strap of top board, both on the basis that does not need to remove railway bed on top board, reinforce the span centre district of top board, can not reduce again the headway under span centre district.
In above-mentioned steps S202, for the Mei Ce bearing district in the span centre district of top board in railway frame structure bridge, at the method flow of the soffit affixing steel plate in this bearing district, as shown in Fig. 4 a, can comprise the following steps:
S401: for Mei Ce bearing district, for the carbon fiber strap that is pasted on this bearing district soffit, smear binding resin at its soffit.
Particularly, for the Mei Ce bearing district in the span centre district of top board, for the carbon fiber strap that is pasted on this bearing district soffit, smear equably binding resin at its soffit, concrete grammar is identical with the method that the soffit that is coated with levelling resin at top board in step S304 is smeared binding resin, repeats no more herein.
S402: for the carbon fiber strap in bearing district, be coated with the soffit affixing steel plate of binding resin at it.
Particularly, as shown in Figure 4 b, for the carbon fiber strap that is pasted on Mei Ce bearing district soffit, be coated with the soffit affixing steel plate of binding resin at it.
Preferably, be pasted on the steel plate of bearing district soffit, its shape, size respectively with the shape of the soffit in this bearing district, measure-alike.The thickness of steel plate can be 5～50mm.As shown in Figure 4 b, for the steel plate of soffit that is pasted on bearing district, adopt crab-bolt to be anchored in the soffit in bearing district.
In above-mentioned steps S202, for the Mei Ce bearing district in the span centre district of top board in railway frame structure bridge, at the method flow of the metope affixing steel plate of the load bearing wall of the railway frame structure bridge joining with this bearing district, as shown in Fig. 4 c, can comprise the following steps:
S411: for Mei Ce bearing district, carry out smooth to the metope of the load bearing wall joining with this bearing district.
Particularly, for the Mei Ce bearing district in the span centre district of top board, carry out smooth for the metope of load bearing wall that road foundation covers of not walked joining with this bearing district, it is identical that the soffit of the top board in concrete grammar and step S301 between the load bearing wall of fracture both sides carries out smooth method, repeats no more herein.
S412: the metope after load bearing wall smooth is smeared binding resin.
Particularly, for the Mei Ce bearing district in the span centre district of top board, metope film binding resin equably at the load bearing wall joining with this bearing district after smooth, concrete grammar is identical with the method that the soffit that is coated with levelling resin at top board in step S304 is smeared binding resin, repeats no more herein.
S413: at the metope affixing steel plate that is coated with binding resin of load bearing wall.
Particularly, as shown in Figure 4 b, for the Mei Ce bearing district in the span centre district of top board, for the load bearing wall joining with this bearing district, be coated with the metope affixing steel plate of binding resin at it.
Preferably, be pasted on the steel plate of the metope of load bearing wall, its shape, size respectively with the shape of the metope of this load bearing wall, measure-alike.The thickness of steel plate can be 5～50mm.As shown in Figure 4 b, for the steel plate of metope that is pasted on load bearing wall, adopt crab-bolt to be anchored in the metope of load bearing wall.
Further, for the steel plate of metope that sticks on respectively same load bearing wall medial and lateral, can adopt drawing crab-bolt that it is anchored in respectively to the metope of the medial and lateral of this load bearing wall.
In fact, for the Mei Ce bearing district in the span centre district of top board, and with the load bearing wall that this bearing district joins, be pasted on the steel plate of this bearing district soffit, with the steel plate of metope that is pasted on this load bearing wall, be connected on the joint of the soffit in this bearing district and the metope of this load bearing wall.
In above-mentioned steps S202, arrange at least one steel support and fix steel support method specifically comprise: as shown in Figure 4 b, for the Mei Ce bearing district in the span centre district of top board in railway frame structure bridge and the load bearing wall joining with this bearing district, at least one steel is set between the steel plate of this bearing district soffit and the steel plate of this load bearing wall metope and supports; The mode that can adopt welding or be anchored, one end that the steel that is strip is supported is fixed on the steel plate of soffit in this bearing district, and the other end that steel is supported is fixed on the steel plate of metope of this load bearing wall.Be anchored and specifically refer to adopt in this article crab-bolt anchoring.
Preferably, steel support has multiple; Multiple steel support along the direction (being the trend of load bearing wall) of the road of walking, with the distance setting of setting; Setting spacing can be 0.5～1.5m.
Preferably, steel supports and is strip, and its cross section is rounded, and diameter of a circle can be 50～200mm; The two ends that steel can be supported are all processed as tabular, are connected to facilitate with steel plate.
Preferably, a steel supports and can be formed by the solid steel bending of a strip; The part of its one end to bending place can be divided into upper support portion, its other end to the part of bending place is divided into lower support portion, upper support portion is greater than 90 ° with the interior angle (being less than the angle of 180 °) of lower support portion crossing formation in bending place.
For the bearing district of top board, one fractional load supports by the concentrated steel that is delivered to of steel plate that is pasted on its soffit; Steel supports the load of bearing is delivered to load bearing wall by the steel plate that is pasted on load bearing wall metope; Thereby do not removing on the basis of railway bed on top board, realizing the reinforcing in the bearing district to top board, also do not affecting the headway under span centre district.
In fact, railway frame structure bridge after the bearing district of top board is reinforced, the schematic diagram of its structure as shown in Figure 4 b, comprise: be pasted on the soffit in the bearing district of the both sides, span centre district of top board steel plate, be pasted on the steel plate of the metope of the load bearing wall joining with bearing district, and at least one steel being arranged between two steel plates that join supports.Between the steel plate of the soffit in bearing district and this soffit, be coated with binding resin; Between the steel plate of the metope of load bearing wall and this metope, be coated with binding resin.Preferably, the two ends that steel supports are welded respectively or are anchored on two steel plates.
In the technical solution of the utility model, after the soffit sticking carbon fiber strap of the top board of railway frame structure bridge, the metope affixing steel plate of the load bearing wall joining at the bearing district of top board soffit, with bearing district, and between the steel plate of this bearing district soffit and the steel plate of this load bearing wall metope, be connected steel support, realize the reinforcing to railway frame structure bridge, and without the railway bed removing on top board, do not affect the operation of this railway.
Further, at a soffit sticking carbon fiber strap in the span centre district of top board, and the carbon cloth tape thickness of pasting is less, does not affect the soffit in span centre district and walks the headway between road foundation.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a railway frame structure bridge, comprising: base plate, top board and be arranged at the multiple load bearing walls between described top board and base plate; It is characterized in that, also comprise:
Be pasted on the crack place of the soffit in the span centre district of described top board carbon fiber strap, be pasted on the soffit in the bearing district of both sides, described span centre district steel plate, be pasted on the steel plate of the metope of the load bearing wall joining with described bearing district, and at least one steel being arranged between two steel plates that join supports;
Wherein, described carbon fiber strap is many, and with described crack move towards perpendicular, its length is at least 10 times of width in described crack.
2. railway frame structure bridge as claimed in claim 1, is characterized in that the side edge of the top board between the two ends of described carbon fiber strap and described load bearing wall.
3. railway frame structure bridge as claimed in claim 2, is characterized in that, described crack is many, and moves towards inconsistent, and described carbon fiber strap is multilayer;
Wherein, every layer of carbon fiber strap respectively corresponding one group move towards consistent crack, and one deck carbon fiber strap corresponding with one group of crack be perpendicular to this group crack move towards to paste.
4. railway frame structure bridge as claimed in claim 3, is characterized in that, between described carbon fiber strap, is spaced apart 200mm.
5. railway frame structure bridge as claimed in claim 4, is characterized in that, the width of described carbon fiber strap and thickness are respectively 300mm and 0.167mm.
6. railway frame structure bridge as claimed in claim 3, is characterized in that, described carbon fiber strap is made up of many carbon fiber cloths; Two adjacent carbon fiber cloths overlap mutually.
7. the railway frame structure bridge as described in as arbitrary in claim 1-6, is characterized in that, also comprises: between the soffit in the span centre district of described top board and described carbon fiber strap, be coated with successively bottom coating resin, levelling resin and binding resin.
8. railway frame structure bridge as claimed in claim 7, is characterized in that, also comprises: between the carbon fiber strap of front stickup and the carbon fiber strap in rear stickup, be coated with described binding resin.
9. the railway frame structure bridge as described in as arbitrary in claim 1-6, is characterized in that, described steel supports to be welding or to be anchored on steel plate.
10. railway frame structure bridge as claimed in claim 7, is characterized in that, described at least one steel supports and is specially the support of more than two steel; Interval between steel supports is equally spaced; And
Described steel supports and is strip, and its cross section is circular; The two ends that described steel supports are tabular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002816.3U CN203821252U (en) | 2014-01-02 | 2014-01-02 | Railway frame-shaped bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002816.3U CN203821252U (en) | 2014-01-02 | 2014-01-02 | Railway frame-shaped bridge |
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| Publication Number | Publication Date |
|---|---|
| CN203821252U true CN203821252U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420002816.3U Expired - Lifetime CN203821252U (en) | 2014-01-02 | 2014-01-02 | Railway frame-shaped bridge |
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| CN (1) | CN203821252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625197A (en) * | 2016-01-04 | 2016-06-01 | 武汉理工大学 | Concrete beam bending reinforcing method based on steel plate-prestressed carbon fiber plate |
-
2014
- 2014-01-02 CN CN201420002816.3U patent/CN203821252U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625197A (en) * | 2016-01-04 | 2016-06-01 | 武汉理工大学 | Concrete beam bending reinforcing method based on steel plate-prestressed carbon fiber plate |
| CN105625197B (en) * | 2016-01-04 | 2017-06-13 | 武汉理工大学 | A kind of anti-bend reinforced method of beams of concrete based on steel plate pre-stressed carbon fiber plate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |